HDR on the beach

Mediterranean storm
I live 30 km far from the Mediterranean sea but i didn't shot any seascape during the past 3 years. I can't explain why, but that's like it.
From one month, things have changed. When i can find a moment for non commmercial photography, i go to the Bau-Rouge, a wild and rocky beach near Carqueiranne and try to catch some beautiful landscapes before summer when the light will be more difficult and when the place will be overcrowded.

In the begining of march, i was there in a bad weather afternoon. At the end of the afternoon, the weather was more and more bad and a big storm was coming. Just before leaving, i could catch some images like the one you can see above.

To keep all the sky contrasts and to avoid underexposing too much the darkest parts of the scenes, i shot 3 exposures for this image.
I converted the 3 raw files to 3 48 bits tif with SilkyPix. The tif files where combined and converted to HDR and tonemapped with Photomatix.
Then as i wanted a perfect sea with no gosthing effect i've blended the tonemapped image with one of the original tif file and kept only the sky from the tonemapped photo.